Which is an IMPOSSIBLE electron configuration?
A) 1s² 2s²
B) 1s² 2s² 2p4
C) 1s³ 2s² 2p5
D) 1s² 2s² 2p⁶ 3s²
Correct Answer:
Verified
Q77: A line spectrum is NOT
A)continuous.
B)discrete.
C)unique.
D)an energy profile.
Q78: An atom represented by Q79: Isotopes are atoms of the same element Q80: An atom of chlorine-37 has Q81: Give the main shell configuration for chlorine. Q83: How many electrons are there in a Q84: The number of electrons in a neutral Q85: How many electrons are there in a Q86: The model for the atom which has Q87: The line spectra of atoms provides experimental
A)20 protons and
A)17
B)18
C)2,
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